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Define Serializable schedule
Serializable schedule: An interleaved schedule of much more than one transaction is known as a serializable schedule, if it is equal to some serial schedule of those transactions.
What are wait-for-graphs?Give the algorithm to construct a wait-for-graph from a given schedule of transactions? How can deadlocks be detected from wait-for-graphs? Ans: The
What is a recursive relationship? Give an example not used in the text. A recursive relationship is a relationship among an entity and itself. For example, given the entity PER
Automated system for appointment with sms and call confirmation with service providers and user has to be initiate automatically. After selecting time and date to use service, s
Which component is not included in database environment ? A users component is not included in database environment.
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
write an SQL statement to create the database in MYSQL server
What is the full form of ODBC ? ODBC stands for Open Database Connectivity.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
After going by the database architecture, let us now dwell on an important query: how is the data organised in a database? There are a lot of basic structures that exist in a datab
What are the requirements to ensure the objectives of file management principle is realized?
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